<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><title></title><head><meta http-equiv="Content-type" content="text/html; charset=UTF-8" /><style type="text/css"> html, body {overflow-x: hidden; } html { width:100%; height:100%; margin:0px; padding:5px; overflow-y: auto; } body { background-color:transparent; overflow:show; background-image:none; margin:0px; padding:0px; padding-right: 5px; }body { font-size:12px;font-family:Verdana; } p { margin:0px;padding:0px; } blockquote { border-left:1px solid #CCC;padding-left:5px;margin-left:5px;}</style></head><body id="bodyElement" style="">  It  looks  to  me  as  if  your gigabit ethernet only supports gigabit speed.  If it supported slower speeds they should be listed in your ethtool output. The solution would therefore be to either add a network card or upgrade your router. Mike <blockquote type="cite">----- Original Message ----- From: Sandy Harris Sent: 09:53 am To: xubuntu-users@lists.ubuntu.com Subject: [xubuntu-users] ethernet oddity I have two machines, recently installed Xubutu on both. One Ethernet works and the other does not. Both use static IPs, 172.31.255.[12], they talk to the same router, and switching cables or router ports does not help. Xubuntu on both is 7.10 Gutsy. I used 1386 on both even though one is AMD, because one will be an xterm to the other and it seemed easier to just have one archtecture. The AMD is working, and the INtel-based machine not, though, so architcture is not the problem. Working machine has an AMD CPU and onboard 10/100 network that uses Sundance driver. One with problems is Core 2 duo on a Gigabyte board, model #GA-G31M-S2L. GIgabyte docs say the gigabit ethernet uses Realtek R8111B chip, and lspci says 8111/8168B, but the driver that is loading is R8169. Could that be the problem? pinging its own address, 172...2 works, but not the router at .254 or other machine at .1. Router does respond to pings from the other machine. route -n gives results that look correct: Destination Gateway Mask Flags Iface 172.31.255.0 0.0.0.0 255.255.255.0 U eth0 0.0.0.0 172.31.255.254 0.0.0.0 UG eth0 (except there's another line for 169.254.0.0; how do I get rid of it?) ifconfig eth0 looks OK too inet addr: 172.31.255.2 Bcast: 172.31.255.255 Mask: 255.255.255.0 ethtool gives some results that look odd: Supported ports: [FIBRE] Supported link modes: 1000baseT/FULL Supports auto-negotiation: yes Speed: 1000 Mbps Auto-negotiation: on Link detected: yes Since the router is 10/100, this appears to be the wrong speed. "ethtool -s eth0 speed 100" gives no error messages, but does not solve the problem. I tried "modprobe -r r8169" and then "modprobe r8169" to re-insert it. After that, lsmod says it is there, but both ethtool and ifconfig give "no such device"messages for eth0. Not sure what to try next or how to diagnose the problem. -- Sandy Harris, Nanjing, China -- xubuntu-users mailing list <a href="http://mail-us.gmx.com/fm07/cgi/g.fcgi/mail/new?&to=xubuntu-users%40lists.ubuntu.com">xubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/xubuntu-users">https://lists.ubuntu.com/mailman/listinfo/xubuntu-users</a> </blockquote></body></html>